Motor-plow.



MOTOR PLOW. -A}.1LIGAII0H FILED JAN.11, 1910.

992,736. Patnted May 16, 1911.A

Mill 19.55 6,3 n Ven {of} .UNITED sTATEs PATENT oEEieE.

CLAUS HINRICH KHN, OF STADE, GERMANY.

i MoToEfPLoW.

To all whom it may concern:

Be it known that I, CLAUS timmert KHN, a subject of the ierman Emperor, and resident of Stade, Germany, have invented a certain new and useful Improvement in Motor-Flows, of vwhich the following is a specification. p

In the specification of my (zo-pending application for patent Serial No. 510611, is described a traction engine comprising an extended frame mounted on wheels between the longitudinal members of which frame are mounted carriages movable in opl'iosite directions said carriages beingeach provided with a sprag which digs.into the ground when its carriage reachesithe forward-end of the framewso` that the carriage is arrested and the vehicle frame is itself moved forward relatively to the carriage until the rear end of the frame reaches the carriage.

.In this position the actuating mechanism blades or the like are provided on chains running'continuously in one direction, thus allowing of a continuous uninterrupted foi1A ward movement of the motor vehiclewithout any shocks on the gears,

In the accompanying drawing which illustrates'the invention, Figure l'is a side View, Fig. 2 is a plan and Fig. 3 a section on the line lr-A of Fig. 1 or B-B of Fig. 2. Referring to the drawings, 1 represents the motor vehicle frame having front wheels .flcontrollable in known manner by a stecring wheel 3 from the drivers seat7 and having rear whe'els 5. [The front wheels 4: (or one of the same) may also be vertically ad'- justable to correspond to the different furrows in case the wheels are intended to run in the furrows themselves.

Close against the inner sides of the 'longitudinal members of the frame are arranged Specification of Letters Patent.

Patented May 16, 1911.

' Application led January 11, 1910. Serial No. 537,536.

chain or belt pulleys 6 and 7 around which pass endless chains 8, ropes, belts or the like.

To these chains 8 are secured the anchors or sprags 9 which are 'adapted to dig substantially vertically into the ground. To links of the chains 8 are fitted transverse rods 1() the. ends of which are preferably formed in the same manner as the pins in the chain.

Between plates '11 mounted on the rods 10 are arranged sprags 9, which can be placed in diferent positions on the plates 11 b v rods passed through holes 12 in the plates 11 and inthe sprags S),-said holes registering with one another. An approximately vertical position of the sprags 9 is preferred,

so that the pressure exerted by them on the.

groundl is in a horizontal direction and tearing up of the ground is thereby avoided. On rotation of the sprockets and 7 and corrcs})ending movement otl the chains S, the

sprags which are firmly connected with the -plates 11 and are suspended on the rods 10 .in the same manner as the plates 11 are moved therewith, or when the sprags. 10 are stationary, the motor vehicle frame moves together with the sprockets 6 and 7 longitudinally relatively to the sprags 9. As the i sprags 9 and the plates 11 are adapted to swing about the rods 10, fixed guides 13 must be provided in which the plates' 11 with.

correspondingsupporting rollers 14, and I15 engage in such manner that swinging` movement of the sprags S) is impossible so long as .the rollers run in the -guides 13 in one or other direction. Aecordingto the direction of movement of the chains 8, either the left or the right hand rollers will rest on the upper guide 13. The guidesl are strongly constructed so that they may withstand the back pressure exerted by the ground.

The ends of the rods 10 which project beyond the guides 13 are preferably provided with supporting rollers 16 Which run in the.

guides 13. The ends 17 of the upper sides of the A`guides 13 are turned upward in order that on movement of the rollers along the guides, the sprags can be Withdrawn from the earth in the end position although they are firmly held when the rollers rlln in the straight parts. of the guides.

1`he sprockets 6 are driven by a shaft 18 through the medium of a chain or belt drive 19 while therear sprockets 7 are driven by the chains 8. If' the traction engine is to he run idly over a road the rods 10- are removed the sprags 9 folded up and the rods replaced so that the sprags do not contact u in the forward part of the frame 1 of the motor vehicle, operating through the medium of a worm drive 22, actuates a shaft- 23and drives a bevel pinion 26 by means of a clutch 25 adapted to be disengaged by the driver by operation of a lever 24. In this bevel wheel may engage one of the bevel wheels 27 or 28 which are axially movable on the shaft 18 but are coupled on rotation according to the position of these bevel wheels their position being controlled in known manner by the driver through the lever 29. By this arrangement it is thus possible to drive the vehicle'bac'kward and forward both during use of the sprags, or after folding them up and connecting the chain drive 20 withthe back wheels 5.

Having described my invention what I claim and desire to secure'by Letters Patent of the United States is:

In a traction engine, in eombinatiom'a frame, lfront and rear wheels on said frame, a motor on said frame, pulleydevices located on both sides of said frame at the front and at the rear ends thereof, tensile members passed around said pulley devices,

transverse rods fitted to said tensile mem bers, plates mounted on sald rods, sprags fitted between the plates, said sprags ada. ted to dig substantially vertically into t e ground, guides having'upturned ends and straight intermediate portions, rollers connected with said plates and adapted to run in said guides, a shaft, and operative connections between said shaft and front pulley devices, 'reversible connections between said motor and said shaft.

I n testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CLAUS HINRICH KHN. l

Witnesses:

RUDOLRH FRIGKE, ISOU'IHARD P. WARNER, 

